Blind steal situation

[MitchL]

I caught a bit of flack from a decent player for the way I played this hand and since it has become a standard line of mine in these situations I thought I would post it here to make sure its not leaky.

BB here is running bad and is loose generally. He does some weird stuff against bad players but plays pretty honestly against me. He defends very liberally especially when he is running bad.

15/30 Cbury

I open otb w/ A [img]/images/graemlins/spade.gif[/img]2 [img]/images/graemlins/spade.gif[/img] bb calls.

Flop: A [img]/images/graemlins/club.gif[/img]9 [img]/images/graemlins/spade.gif[/img]7 [img]/images/graemlins/heart.gif[/img]

BB checks, I bet he calls.

Turn: 9 [img]/images/graemlins/club.gif[/img]

BB checks, I check.

River: 9 [img]/images/graemlins/heart.gif[/img]

BB bets I call.

Any value in a river raise given villains description? I think I have been playing poorly as of late though I havent been running bad. Any help would be appreciated.